Ball-bearing.



F. W. WITTE.

BALL BEARING. APPLIGATION FILED APR.23,1906.

Patented Oct. 6, 1908.

' balls apart, a construction which would be- To all whom it mayconcern:

UNITED STATES PATENT OFFIGEQ.

FREDERICK WILLIAMWITTE, OF QHELM SLFDRD, ENGLAND.

BALL-BEARiING.

d'it known that I, FREDERICK WILLIAM Wrr'm, a citizen of the UnitedStates, residing at, Chelmsford, in the county of Essex, En land, haveinvented a'certain new and use 1 1m rovement in' Ball-Bearings, of

which the following is a specification. v

This invention relates to ball bearings of the self contained, singlerow, two a point t pe, in which the balls'travelin two tracks of equaldepth and approximately of the same curvature as the balls and of whichmany forms are in use or have been proposed, one form consisting of tworings having unbroken side's between which as'maziy balls are placed ascan be got in by placing the rings eccentrically and then-spacing theentirely satisfactoryif the number of balls could be increased and theload thus better supported. 1

The object of the present invention isto' provide a bearing which'ossesses the advantage of carrying the fu number of balls less thespace occupied by the spacingv device or cage where such is used and inwhich'an arrangement heretofore proposed is adopted,

of having a gapin the'side ofone of the rings for each ball, sothat thefilling is quickly performed, the principal object .of

the present invention being to so space the ball a art by the cage orholding device employed and to so space the gapsin the ring that onlyonce in the entire revolution of the balls will they-come opposite totheir enter ing gaps whereby their liability to be forced out by anylateral pressure will bcreduced.

less desirably the ring a) there is ormed a 1 is across section of aform of In the accompanying drawin 's :Figure earing, and- Fig. 2 is aface view but with .the ball cage in section. It will' b seen that theinner ring a and the outer ri g b have the usual curved tracks fol-theballs and that from one side of one of these ridge, in this case the rinb, (or

gapor groo ve 0 for. each ball said gap preferably not passin directlyinto the track or being of the full epth of the latter but leaving anabutment d which .is suflicient to maintain-ate track perfect at theworking point pf contact of the balls.

v In the arrangement shown, two of the balls 1 aiidrQ are carried by thecage e closer together-than the rest andthe're are two gapsSpecification of Letters Patent.

Application filed April 23, 1906. Serial No. 313,254.

Patented Oct. c, 1908.

0 0 which are also closer together and which art adaptedto, receivesuchballs 1 and 2.

To assemble the bearing, the balls, either with or without the cage arearranged around the track of say the inner ring a so that a ball, isopposite each gap 0 0' 0 and the inner ring with the balls in thebottom. of its curved track are the forced into the otherby reason ofthe balls moving through the gaps and riding over the abutment d byress'ure and the slight elasticity of the ring which owing'to thegrooves or cuts being all'around same can expand equally and thus hasless strain thrown upon it'tha'n in those well known forms of-bearingsin which the.

last balls are entered through a sing e gap or gaps by pressure, aconstruction which necessitates where only one gap in theouter ring 1 semployed, a gap deeper than its track which is thus cut into or where, agap is,

formed in each ring theweakenihg of the I inner which it is ofimportance in bearings of this class to avoid it being already moreliable to fracture than the outer.

It will be understood that in the1present invention the balls cannot beinserted if both rings occupy the same-plane but only when such ballsare in the trackof the innerand when such tracklies opposite the gaps{of the outer as it does before the'inner ring 15 passed [intothe-latter. When the two rings and balls are in position it will be seenthat it is only at points opposite the gaps that the minimum depth ofabutment as d exists, theparts between the grooves being abutments ofthe full size formed by the usual walls of the track. y

With the arrangement "illustrated, only once in an'entire rotation ofthe balls around their track will the whole of them be opposite topoints where they were entered and where an excess of lateral pressuregreater than that which the abutment d can withhered to.

ing device for the same adapted latter case, the method of assemblingbeing to put the last few balls in singly through the gaps after therings Were concentric or in the same plane while in the present case thebells are all put in together by first leci'ng them in the depth of thetrack o. one ring and then forcing them through the gaps over a slightabutment into the track of the other ring by which means an unbrokentrack with the advantage consequent to this type is secured.

The cage may be of the solid type, the halls being placed therein beforethey are forced down the gaps or it may be divided. and be pieced overthe bells after they are in position.

I have stated that there is a separate gap for each ball and this ispreie;-1: le but it would come Within the present invention if one ofmore of the grooves were made large enough to ia se-two or more balls athe same time so long as the irregular spacing is ad- Whet I claim isp 1. A ball bearing comprising balls, at spacto unequally space theballs, an inner and an outer ring, each having t curved track and havinga spaced around the sen the spacing; of the be? from one side inward Aball in on in "Loam rd the Hi i L i space the bulls, an inner an anouter ring, each having :1 curv luivine :1 series of gaps in one of therings rnw ah s spaced around the mun: to corrcs 'mml with X A l the s)ilCllN of tin is being of:

. a depth where the, nter the truer; which less than the full dc suchtrack.

In tr tnnony v. my hand in the ire, witnesses;

l have hereunto set once of two smtscribiug

